KR930007735A - Gas generators used in inflatable shock absorbers to protect occupants of cars from injury - Google Patents

Gas generators used in inflatable shock absorbers to protect occupants of cars from injury Download PDF

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Publication number
KR930007735A
KR930007735A KR1019920019874A KR920019874A KR930007735A KR 930007735 A KR930007735 A KR 930007735A KR 1019920019874 A KR1019920019874 A KR 1019920019874A KR 920019874 A KR920019874 A KR 920019874A KR 930007735 A KR930007735 A KR 930007735A
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KR
South Korea
Prior art keywords
piston
gas
combustion chamber
wall
combustion
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KR1019920019874A
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Korean (ko)
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브레데 우베
크라프트 조세프
제벡 볼프람
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슐츠, 우페나
다이나미트 노벨 악티엔게젤샤프트
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Publication of KR930007735A publication Critical patent/KR930007735A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B60R21/264—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags

Abstract

가스발생기(10)는 액체가스(28)을 저장하기위한 저장실(24)이 형성되어 있는 하우징(12)을 갖추고 있다. 저장실(24)은 하우징(12)에 또한 형성되어 있는 연소실(40)로부터 간막이 벽(26)에 의해서 분리된다. 점화장치(32)는 연소실(34)에 연결되며, 점화 전하는 점화하는 동안에 연소가스를 발생시킨다.The gas generator 10 has a housing 12 in which a storage chamber 24 for storing liquid gas 28 is formed. The reservoir 24 is separated by a partition wall 26 from the combustion chamber 40, which is also formed in the housing 12. The ignition device 32 is connected to the combustion chamber 34, and the ignition charge generates combustion gas during ignition.

예비연소실(34)에서 피스톤(36)은 제거가능한 방식으로 안내되고, 점화전하의 연소가스 때문에 피스톤(36)은 간막이벽(26)을 관통하기 위해서 연소실(40)내로 이동하여 간막이 벽(26)의 방향으로 연소실을 통과한다. 간막이 벽(26)이 관통 되는 경우에는 저장실(24) 및 연소실이 액체가스용 홈(58, 60)을 통해서 연결 되므로, 액체가스(28)는 연소실(40)내로 유동할 수 있다. 피스톤(36)에 형성된 점화용 홈(66)을 통해서 예비연소실(34) 및 (중앙)연소실(40)이 동시에 연결된다. 점화전하의 고온 연소가스는 유입되는 액체가스를 점화시킨다. 연소실(40)에서 증가하는 내부압력은 세로방향으로 제거가능하게 안내되는 간막이 벽내로 변위로서 전달되며, 가낙이 벽은 피스톤(36)과 함께 이동하고, 이것에 의하여 저장실(34)로부터 연소실(40)내로 액체가스(28)가 계속적으로 분사된다. 환형 챔버(48, 54)를 통해서 나오는 연소가스(40)는 배출용 개구부(56)를 통해서 외부로 배출된다.In the precombustion chamber 34, the piston 36 is guided in a removable manner, and because of the combustion gas of the ignition charge, the piston 36 moves into the combustion chamber 40 to penetrate the partition wall 26 and thus the partition wall 26. Pass the combustion chamber in the direction of. When the partition wall 26 is penetrated, since the storage chamber 24 and the combustion chamber are connected through the grooves 58 and 60 for the liquid gas, the liquid gas 28 may flow into the combustion chamber 40. The pre-combustion chamber 34 and the (central) combustion chamber 40 are connected at the same time through the ignition groove 66 formed in the piston 36. The hot combustion gas of the ignition charge ignites the incoming liquid gas. Increasing internal pressure in the combustion chamber 40 is transmitted as a displacement into the wall, which is guided longitudinally and removably, where the fall wall moves with the piston 36, whereby the combustion chamber 40 is removed from the storage chamber 34. Into the liquid gas 28 is continuously injected. Combustion gas 40 coming out through the annular chambers 48 and 54 is discharged to the outside through the discharge opening 56.

Description

자동차의 탑승자를 부상으로부터 보호하기 위한 부풀릴 수 있는 충격완충에 사용되는 가스발생기Gas generators used in inflatable shock absorbers to protect occupants of cars from injury

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 점화전하를 점화시키기 전에 제위치에 배치되는 피스톤 및 가스를 발생시키는 재료인 액체가스가 제공되어 있는 원형 가스발생기의 종단면도,1 is a longitudinal sectional view of a circular gas generator provided with a liquid gas which is a material for generating a piston and a gas disposed in place before igniting an ignition charge,

제2도는 저장실 및 연소실 사이에서 피스톤에 의해 관통되는 간막이 벽이 도시된 제1도에 따른 원형 가스발생기의 종단면도.FIG. 2 is a longitudinal sectional view of the circular gas generator according to FIG. 1 showing a partition wall pierced by a piston between the storage chamber and the combustion chamber.

Claims (17)

자동차의 탑승자를 부상으로부터 보호하기 위한 부풀릴 수 있는 충격완충에 사용되는 가스발생기로서, 하우징(12;74)과, 상기 하우징(12;74)에 수용되는 가스를 압력하에서 발생시키기 위해 연소가능한 가스를 발생시키는 재료(28)와, 상기 가스를 발생시키는 재료(28)에 대한 점화가능한 점화 전하와, 그리고 하우징벽에 제공된 적어도 하나의 배출용 개구부를 통해서 배출되는 결과로서 압력하에서 형성되는 가스가 제공되어 있으며 상기 가스를 발생 시키는 재료(28)가 연소되는 상기 하우징(12;74)에 배치된 연소실(40;90)을 갖추고 있는 가스발생기에 있어서, 상기 점화전하가 점화되는 경우에, 상기 가스를 발생시키는 재료가 제어된 방식으로 상기 연소실(40;90)내로 제공되어 연소되는 액체가스(28)인 것을 특징으로 하는 가스발생기.A gas generator that is used for an inflatable shock absorber to protect a passenger of an automobile from injuries, comprising: a housing (12; 74) and a gas combustible for generating under pressure a gas contained in the housing (12; 74); And a gas formed under pressure as a result of being discharged through the at least one outlet opening provided in the housing wall, and the ignitable ignition charge to the gas-generating material 28 and the housing wall. And a gas generator having a combustion chamber (40; 90) disposed in the housing (12; 74) in which the material (28) for generating the gas is combusted, the gas is discharged when the ignition charge is ignited. Gas generator, characterized in that the generating material is a liquid gas (28) provided and combusted into the combustion chamber (40; 90) in a controlled manner. 제1항에 있어서, 상기 연소실(40;90)이 형성되는 상기 하우징(12;74)과, 상기 하우징(12;74)으로부터 상기 연소실(40;90)에 형성되는 연소가스를 배출시키기 위한 적어도 하나의 배출용 개구부(56;118)와, 간막이 벽(26)에 의해서 상기 연소실(40;90)로부터 분리되며, 상기 액체 가스(82)를 저장시키기 위한 저장식(24;94, 96)과, 상기 액체가스(28)를 점화시키기 위해서 연소가스를 발생시키는데 사용되는 상기 점화전하를 갖춘 점화장치(32;80)와, 그리고 상기 점화전하가 점화되는 경우에, 상기 점화전하 연소의 결과로서 상기 간막이 벽(26)의 방향으로 제거되어 가스압력 때문에 상기 간막이 벽(26)을 관통 하며, 세로방향으로 교체가능하게 안내되는 피스톤(36, 82)을 갖추고 있는 가스 발생게 있어서, 이것들에 의하여 상기 피스톤(36;82)의 배후단부(64;84) 지역에서 상기 피스톤(36;82)의 이동방향으로 상기 점화전하의 연소가스가 상기 연소실(40;90)에 도달하고, 상기 피스톤(36;82)의 정면단부(38;88)지역에서 상기 저장실(24;94, 96)로부터 나온 상기 액체가스(28)가 상기 연소실(40;90)에 도달하여 이 연소실(40, 90)에서 연소되는 것을 특징으로 하는 가스발생기.2. The apparatus as claimed in claim 1, wherein the housing (12; 74) in which the combustion chamber (40; 90) is formed, and at least for the combustion gas formed in the combustion chamber (40; 90) from the housing (12; 74) A discharge opening (56; 118) and a partition wall (26), separated from the combustion chamber (40; 90), for storage (24; 94, 96) for storing the liquid gas (82), An ignition device 32; 80 with the ignition charge used to generate combustion gas to ignite the liquid gas 28, and, when the ignition charge is ignited, the membrane as a result of the ignition charge combustion. The gas generating chamber is provided with pistons 36 and 82 which are removed in the direction of the wall 26 and which, due to the gas pressure, cause the membrane to penetrate the wall 26 and to be guided in a longitudinally replaceable manner. The piece in the region at the rear end 64; 84 of 36; 82; Combustion gas of the ignition charge reaches the combustion chamber (40; 90) in the moving direction of (36; 82), and the storage chamber (24; 94) at the front end (38; 88) region of the piston (36; 82). Gas generator, characterized in that said liquid gas (28) from said (96) reaches said combustion chamber (40; 90) and is combusted in said combustion chamber (40, 90). 제2항에 있어서, 상기 액체가스(28)의 유입구에 대하여 상기 저장실(24;94, 96)을 상기 연소실(40, 90)에 연결시키는 상기 간막이 벽(28)내로 상기 피스톤(36;82)이 이동하는 경우에, 적어도 하나의 액체가스용 홈(58, 60;104, 106)을 갖춘 상기 피스톤(36, 82)이 제공되는 것을 특징으로 하며 적어도 하나의 점화용 홈(66;86)을 갖춘 상기 패스톤(36;82)이 제공되고, 이것에 의하여 상기 피스톤(36, 82)이 상기 간막이 벽(26)내로 이동하는 경우에, 상기 점화전하의 연소 가스가 상기 연소실(40;90)내로 유동하는 것을 특징으로 하는 가스발생기.3. The piston (36; 82) of claim 2, wherein the piston (36; 82) is connected into the diaphragm wall (28) connecting the reservoir (24; 94, 96) to the combustion chamber (40, 90) with respect to the inlet of the liquid gas (28). In this case, the pistons 36, 82 with at least one liquid gas groove 58, 60; 104, 106 are provided and at least one ignition groove 66; 86 is provided. Provided with the passtones 36 and 82, whereby when the pistons 36 and 82 move into the diaphragm wall 26, the combustion gas of the ignition charge is transferred to the combustion chamber 40 and 90. A gas generator, characterized by flowing into. 제3항에 있어서, 상기 점화장치(32;80)가 수용되는 에비 연소실(34;78)의 경계벽(30;76)에 인접하도록 상기 피스톤(36;82)이 세로방향으로 제거가능한 방식으로 안내되는것을 특징으로 하며 상기 피스톤의 정면단부(38;88)가 상기 연소실(40;90) 및 상기 저장실(24;94, 96) 사이에 위치한 간막이벽(26)을 관통할때까지 적어도 하나의 점화용 홈(66;86)이 예비연소실 벽(30;76)에 의하여 상기 피스톤(36, 82)이 전방으로 이동하는 동안에 폐쇄되는 것을 특징으로 하는 가스발생기.4. The piston (36; 82) is guided in a longitudinally removable manner so as to be adjacent to the boundary wall (30; 76) of the eb combustion chamber (34; 78) in which the ignition device (32; 80) is received. At least one ignition until the front ends 38 and 88 of the piston penetrate the partition walls 26 located between the combustion chambers 40 and 90 and the storage chambers 24 and 94 and 96. Gas generator, characterized in that the groove (66; 86) is closed by the precombustion chamber wall (30; 76) while the piston (36, 82) is moving forward. 제3항 또는 4항에 있어서, 상기 피스톤(36;82)의 정면단부(38;88)쪽으로 개방되고 축방향으로 연장되는 제1액체가스용 홈(58;104)이 상기 피스톤(36;82)의 이동방향으로 상기 피스톤(36;82)의 정면단부(38, 88)지역에 형성되고, 상기 제1 액체가스용 홈(58;104)이 상기 피스톤(36;82)의 주변부 측면쪽으로 개방되고 방사상으로 연장되는 제2액체가스용 홈구간(60;160)에 연결되는 것을 특징으로 하는 가스발생기.5. The piston (36; 82) according to claim 3 or 4, wherein the first liquid gas groove (58; 104) is opened toward the front end (38; 88) of the piston (36; 82) and extends in the axial direction. Is formed at the front end portions 38 and 88 of the pistons 36 and 82, and the first liquid gas grooves 58 and 104 are opened toward the peripheral side surface of the pistons 36 and 82. And a radially extending second groove section for the liquid gas (60; 160). 제3항 내지 제5항중 어느 한 항에 있어서, 상기 피스톤(36;82)의 배후단부의 중앙지역으로부터 연장되고, 상기 피스톤(36;82)의 세로축 쪽으로 연장되어 상기 피스톤(36;82)의 주변부 측면에서 끝나는 몇 개의 점화용 홈(66;86)이 상기 피스톤의 배후단부(64;84) 지역에 형성되는 것을 특징으로 하는 가스발생기.6. The piston as claimed in any one of claims 3 to 5, which extends from the central region of the rear end of the piston (36; 82) and extends toward the longitudinal axis of the piston (36; 82). A gas generator, characterized in that several ignition grooves (66; 86) are formed in the region of the rear end (64; 84) of the piston, ending at the peripheral side. 제2항 내지 제6항중 어느 한 항에 있어서, 상기 피스톤(36;82)이 상기 간막이 벽(26)내로 이동하는 경우에, 상기 피스톤의 정면단부(38;88)가 되도록이면 조이는 방식으로 상기 간막이 벽(26)에 단단히 연결되는 것을 특징으로 하는 가스발생기.The method according to any one of claims 2 to 6, wherein when the piston (36; 82) moves into the wall (26), the front end (38; 88) of the piston is tightened in such a way as to tighten it. Gas generator, characterized in that the membrane is firmly connected to the wall (26). 제2항 내지 제7항중 어느 한 항에 있어서, 상기 간막이 벽(26)에 상기 피스톤(36)의 관통 지점(70)이 제공되어 있고, 상기 간막이 벽(26)이 관통 되는 경우에 상기 저장실(24)쪽으로 좁아지는 지름을 갖는 구멍이 형성되는 것을 특징으로 하는 가스발생기.8. The storage compartment (1) according to any one of claims 2 to 7, wherein the partition wall (26) is provided with a through point (70) of the piston (36), and the reservoir (26) is penetrated when the partition wall (26) is penetrated. A gas generator characterized in that a hole having a diameter narrowing toward 24) is formed. 제2항 내지 제7항중 어느 한 항에 있어서, 상기 간막이 벽(26)의 두께가 감소되는 지역에서, 상기 간막이 벽(26)에 상기 피스톤(36)의 관통지점(70)이 제공된 것을 특징으로 하는 가스발생기.8. The penetrating point 70 of the piston 36 is provided in the partition wall 26 in any of the regions where the thickness of the partition wall 26 is reduced. Gas generator. 제9항에 있어서, 상기 간막이 벽(26)에 상기 피스톤(36)의 관통 지점(70)의 지역 및 원추형으로 가늘어지는 리세스(68)가 제공되어 있고, 상기 간막이 벽(26)의 측면이 피스톤(36)을 향하고 있는 것을 특징으로 하는 가스발생기.10. The diaphragm wall (26) is provided with a conical tapered recess (68) in the region of the through point (70) of the piston (36), and the side of the diaphragm wall (26) is provided. Gas generator, characterized in that facing the piston (36). 제7항 내지 제10항중 어느 한 항에 있어서, 상기 피스톤(36)이 원추형으로 가늘어지는 정면단부(38)를 갖추고 있는 것을 특징으로 하며, 상기 간막이 벽(26)이 관통되는 경우에 상기 피스톤의 정면단부(38)가 조이는 방식으로 상기 간막이 벽(26)에 연결되는 것을 특징으로 하는 가스발생기.The piston (36) according to claim 7, wherein the piston (36) is provided with a conical tapered front end (38), wherein the diaphragm wall (26) is penetrated. Gas generator, characterized in that the membrane is connected to the wall (26) in such a way that the front end (38) is tightened. 제10항에 있어서, 상기 간막이 벽(26)이 상기 피스톤(36)의 이동방향으로 상기 하우징(12)내에서 제거가능하게 안내되는 것을 특징으로 하며, 상기 간막이 벽(26)이 상기 피스톤(36)과 함께 이동하고, 상기 연소실(40)에서 상승하는 연소가스 압력 때문에 상기 피스톤(36)이 상기 간막이 벽(26)으로 이동하는 경우에 상기 액체가스(28)가 상기 연소실(40)내로 배출됨에 따라 부피가 감소되는 상기 저장실(24)과 함께 상기 간막이 벽(26)이 이동하는 것을 특징으로 하는 가스발생기.11. The diaphragm wall (26) according to claim 10, characterized in that the diaphragm wall (26) is removably guided in the housing (12) in the direction of movement of the piston (36), the diaphragm wall (26) being the piston (36). And the liquid gas 28 is discharged into the combustion chamber 40 when the piston 36 moves to the partition wall 26 because of the combustion gas pressure rising in the combustion chamber 40. And the partition wall (26) moves together with the reservoir (24) whose volume is reduced accordingly. 제1항 내지 제12항중 어느 한 항에 있어서, 압력이 작용하는 경우에 변형될 수 있는 제1 콘테이너(94)와, 상기 피스톤(85)에 의해서 관통될 수 있는 간막이 벽이되는 상기 연소실(90)로부터 상기 저장실을 분리시키는 챔버의 벽구간에 의해서 사익 저장실이 구성되는 것을 특징으로 하는 가스발생기.The combustion chamber (90) according to any one of claims 1 to 12, wherein the combustion chamber (90) is a wall of a first container (94) that can be deformed when a pressure is applied, and a partition wall that can be penetrated by the piston (85). Gas generator, characterized in that configured by the wall section of the chamber separating the storage compartment from the). 제13항에 있어서, 액체가스가 연소되는 경우에 상기 제1저장 콘테이너(94)에 반대로 압력을 가하기 위해서 상기 제1저장 콘테이너(94)에 놓여있는 본래부터 안정한 압력판(100)이 상기 연소실(90) 내부에 배치되는 것을 특징으로 하며, 상기 압력판(100)이 상기 제1저장 콘테이너(94)의 관통 지점과 정렬된 개구부(102)를 갖추고 있는 것을 특징으로 하는 가스발생기.14. The combustion chamber (90) according to claim 13, wherein an inherently stable pressure plate (100) placed in said first storage container (94) to pressurize said first storage container (94) when liquid gas is burned. Gas generator, characterized in that the pressure plate (100) has an opening (102) aligned with the through point of the first storage container (94). 제1항 내지 제14항중 어느 한 항에 있어서, 관통 지점에서 상기 제2저장 콘테이너(96)를 또한 관통하는 상기 피스톤(82)을 갖춘 상기 하우징(74)에 제공되는 액체가스를 저장하기 위한 상기 제2저장 콘테이너(96)를 특징으로 하며, 상기 피스톤(82)이 상기 제1저장 콘테이너(94)의 벽내로 이동하는 경우에 상기 제1저장 콘테이너(96)를 상기 연소실(90)과 연결시키기 위한 적어도 하나의 액체가스용 홈(104, 106)을 상기 피스톤(82)이 갖추고있는 것을 특징으로 하는 가스발생기.15. The method according to any one of the preceding claims, wherein the liquid for storing liquid gas provided to the housing (74) with the piston (82) also penetrating the second storage container (96) at the point of penetration. And a second storage container 96, connecting the first storage container 96 to the combustion chamber 90 when the piston 82 moves into the wall of the first storage container 94. Gas generator, characterized in that the piston (82) is provided with at least one groove for the liquid gas (104, 106). 제15항에 있어서, 상기 두개의 저장 콘테이너(94, 96)가 상기 피스톤의 이동방향으로 일렬로 배열되는 것을 특징으로 하며, 상기 피스톤(28)의 상기 정면단부(88)가 상기 피스톤(28)의 이동방향으로 상기 제1저장 콘테이너(94)를 통해서 연장되어 상기 제2저장 콘테이너(96)내로 연장되는 것을 특징으로 하는 가스발생기.The method of claim 15, characterized in that the two storage containers (94, 96) are arranged in a line in the direction of movement of the piston, wherein the front end (88) of the piston (28) is the piston (28). And a gas generator extending through the first storage container and extending into the second storage container. 제16항에 있어서, 상기 제1저장 콘테이너(94)가 피스톤(82)의 이동방향으로 피스톤(82)을 향하여 단부가 이격되어 있는 상기 제2저장 콘테이너(96)를 수용하기 위한 만(98)을 갖추고 있는 것을 특징으로 하는 가스발생기.18. The bay (98) of claim 16, wherein said first storage container (94) is adapted to receive said second storage container (96) with ends spaced toward said piston (82) in the direction of movement of said piston (82). Gas generator comprising a. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920019874A 1991-10-28 1992-10-28 Gas generators used in inflatable shock absorbers to protect occupants of cars from injury KR930007735A (en)

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DEP4135547.4 1991-10-28
DE4135547A DE4135547A1 (en) 1991-10-28 1991-10-28 GAS GENERATOR, IN PARTICULAR FOR AN INFLATABLE IMPACT CUSHION TO PROTECT A MOTOR VEHICLE INJURY FROM INJURY

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US5415845A (en) 1995-05-16
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EP0539872A1 (en) 1993-05-05
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US5330730A (en) 1994-07-19
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DE59207942D1 (en) 1997-03-06

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